A compound hinge with driving and locking functions for connecting satellite solid-surface antennas
A composite hinge and hinge technology, which is applied to antennas, folded antennas, electrical components, etc., can solve problems such as the inability to achieve multi-degree-of-freedom folding and unfolding, the inability to eliminate the gap between moving parts, and the impact on the performance of the antenna deployment accuracy. Eliminate assembly Error, the effect of high-precision locking
Active Publication Date: 2020-02-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0003] At present, the connection hinge and related products with driving and locking functions between solid surface reflector antenna modules are still blank.
Satellite antenna hinges are mostly single-axis hinges, which cannot be folded and unfolded with multiple degrees of freedom
At the same time, the locking method is mostly in the form of cooperating the positioning pin and the positioning hole. Due to the processing errors and assembly errors of the product parts, the simple locking method of the positioning pin and the positioning hole cannot eliminate the gap between the moving parts caused by the error. gap, which in turn affects the deployment accuracy and performance of the antenna
Method used
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[0039] The two hinge bases 1 are respectively installed on the antenna interfaces of two adjacent solid surfaces through the positioning pin hole 5 and the bolt installation hole 6. When the composite hinge is folded, the deadbolt locking pin 14 is inserted into the locking hole 10 to ensure that the deadbolt one 7 1. Lock tongue 2 9 is in a locked state and cannot be bounced;
[0040] Such as Figure 4-7 As shown, when the composite hinge is unfolded, the needle-shaped unlocker can be used as an ordinary needle-shaped steel needle or a steel cylinder with a diameter of 1-2 mm to be inserted into the locking hole 10 to press the locking bolt 15, the locking bolt 7 and the lock. Tongue two 9 bounces a small amount of distance under the effect of deadbolt return spring 16, and deadbolt locking pin 14 leaves locking hole 10, butts against deadbolt mounting groove 17 inwalls, and deadbolt one 7 and deadbolt two 9 are in working order. As the hinge base 1 is unfolded under the act...
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The invention discloses a satellite fixed-surface antenna connection composite hinge having driving and locking functions. The composite hinge includes two hinge bases that are fixed to the two fixed-surface antenna interfaces through positioning pin holes and bolt mounting holes, and the two hinge bases are connected together through a connecting arm, a central rotating shaft, a base rotating shaft and a sliding rotating shaft; by pressing a spring bolt locking pin in the locking hole, the spring bolt is released to enter a working state under the action of the spring bolt return spring, andthe two hinge bases are unfolded under the action of driving coil springs; when the two fixed-surface antennas are unfolded in place, the sliding rotating shaft moves to the slope at the outer side ofthe spring bolt, and the sliding rotating shaft is locked through the friction angle at the inclined surface of the spring bolt. According to the invention, the driving power and the locking functioncan be provided for the folding and unfolding of the antenna, the multi-degree-of-freedom movement connection of two adjacent fixed-surface reflection surface reflection satellite antennas is realized, so that repeated folding and high-precision unfolding and locking of the fixed-surface reflecting surface antenna are achieved.
Description
technical field [0001] The invention relates to a satellite solid-surface antenna connection composite hinge with driving and locking functions, and belongs to the technical field of satellite antenna equipment. Background technique [0002] With the development of satellite technology, more attention has been paid to the design requirements of multi-band, high precision and large capacity in the design of satellite antennas, and the design of satellite antennas has gradually become more complicated. However, due to the limitations of rocket carrying capacity, economy and other factors, the antenna structure needs to be light in weight and small in size. Based on the above contradictions, modular and expandable antenna technology has emerged and developed rapidly, and has become an important way to solve the needs of satellite antennas such as large aperture, high precision, and light weight. This requires the antenna to be in a folded state when launching, and unfolded aft...
Claims
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IPC IPC(8): H01Q1/08H01Q15/16
CPCH01Q15/161H01Q15/162
Inventor 王宸聂宏陈金宝马益秦远田蔡友慧陈传志戴宇航李波
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS